TWW 11.1 PTR - Undermine - Vexie and the Geargrinders - Unholy DK (Riders ST)

No optimal gameplay, High latency and first time doing the Bosses. Played Rider ST here because of the Burn Phase. Slightly delayed 1.5 minute CD for that. Not sure if its the play or not :)
I didnt play with the new Tier set here, as 4pc. is bugged.